Career
Dewick made his senior international debut when he was selected for Australia to compete at the Oceania Championships in 1993. A star at the 1994 in Victoria, British Columbia, Canada, he collected a silver medal in the 100-metre backstroke, and a gold medal in the 4×100-metre medley relay. Steven was voted as the performance of the games for his 100-metre backstroke.
In Atlanta, Dewick combined with Philosophy Rogers, Scott Miller and Michael Klim to trail the United States and Russia teams into third place.
Dewick also competed in the 100-metre backstroke, advancing to the semifinals.